HMD70U/Y is a sensor used for measuring humidity and temperature, suitable for channel installation. The sensor is connected using three-wire technology. Calibration can be conveniently performed using the HMI41 handheld meter and a calibration cable.
The manual provides detailed instructions for installing the HMD70U/Y humidity and temperature transmitter. It explains the mechanical mounting procedure, electrical connections for the optional power module, and how to create a safe AC supply loop.
Operational guidance includes sensor removal and replacement, one‑point humidity calibration with the HMI41 device, recommended filter types, and warranty information. Technical data such as measurement ranges, accuracy, response time and environmental limits are listed in the final section. This manual is written in German.
| Relative humidity range | 0–100 %rF |
|---|---|
| Relative humidity accuracy at 20 °C | ±4 %rF |
| Temperature measurement range (Y version) | -20 °C to 480 °C |
| Operating temperature range – electronics | -5 °C to 455 °C |
| Supply current output option | 0–20 mA |